Improvement in sash-lock and bolt



To all whom it may concern:

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LEWIS O. CAMERON, OE ALLEGHENY CITY, PENNSYLVANIA.

Leners Patent No. 88,129, dated Mmh V23, 1869.

.mRovEMz-:NT IN Sasa-Loox AND BOLT.

The Schedule referred to in these Letters Patent and making part of the um.

Be it known that I, LEWIS O. CAMERON, of the city and county of Allegheny, and State of Pennsylvania,

have invented a new and useful Improvement in Sash- Bolt and Night-Lock; and I do hereby declare that the following is a fulland exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of `my invention consists in combining a sash-bolt and night-lock in one apparatus, constructed, arranged, and Operating in the manner hereinafter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. l

In the accompanying drawings, which form part of my specification- Figure 1 represents the arrangement and position of the several parts of my improvement in sash-bolt and night-lock when the bolt, or catch is thrown out.

Figure 2-represents the same when the bolt, or catch is drawn in.

Figure 3 represents the sash-bolt, or nightdock attached to a section of a Window-sash or door.

In the drawings- A represents the case of the bolt, or lock.

B represents the thumb-lever, the lower end of which Ais provided with a piece, C, on the side near the lower edge of which is a projection, marked 1, against which the tongue of the key, indicated by the dotted lines i, acts, for the purpose of drawing down the piece O and thumb-lever B.

2 represents the pintle for the key of the night-lock.

D represents a lever, which is pivoted at O.

The bolt, or catch f is provided with a projection, 5, and aspiral spring, c, and is held in position by being 'placed in an opening made in the case A and in the projection marked 6.

The case A is secured to the sash or door X, by screws placed in lug g. v

In the window or door-frame X', a recess is made for the projecting end of the bolt, or catch.

As the construction and arrangement `of the several parts of my improved'sash-bolt, or night-lock will be readily understood by the skilful mechanic, by reference to the accompanying drawings, I will therefore, without further description of its construction, proceed to describe its Operation, which is as follows: When my improvement is used as a night-lock, a keyhole is made in the door, opposite to the pintle 2. In the shank of the key is an opening, the bore of which corresponds to the diameter of the pintle 2. The keyv is placed in the lock in the ordinary manner. By turning the key, the tongue of the key will 'press down on the projection 1, which will draw down'the thumb-lever B, and the part O, pressing on the arm 4 of the lever 5, will cause the point 3 to press against the projection 5, and'force back the bolt, or catch f.l By withdrawing the ike'y, the spring c will cause the several parts to assume the position represented in fig. 1.

When my improvement is used as a sash-bolt, the bolt, or catch fis withdrawn by pressing down on the thumb-lever B, which will force down the arm 4 of the lever D, the points 3 of which will press back the projection 5, and thereby draw back the bolt f, and, by removing the pressure oi the thumb-lever B, the spring e will cause the several parts to assume the position represented in fig. 1.

The bolt, or'catch f is prevented, by the part O, from moving back, until the part C is forced down below the end of the bolt, or catch f.

Having thus described the nature, construction, and operation of my improvement,

What I claim as of my invention, is-

In the sash-bolt, as. shown, the combination and arrangement of the part C with the lever D and bolt, or catch f, as constructed, arranged, and operating in the manner and for the purpose set forth.

L. O. CAMERON.

Witnesses:

A. O. JOHNSTON, J AMES J. JOHNSTON. 

